<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avater_box">
        <div class="img-login"></div>
      </div>
      <div>
        <el-form
          ref="loginFormRef"
          :model="loginForm"
          :rules="loginFormRules"
          label-width="0px"
          class="login_form"
        >
          <!-- 用户名 -->
          <el-form-item label prop="username">
            <el-input
              v-model="loginForm.username"
              prefix-icon="iconfont icon-ren"
            ></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item label prop="password">
            <el-input
              type="password"
              v-model="loginForm.password"
              prefix-icon="iconfont icon-suo1"
            ></el-input>
          </el-form-item>
          <!-- 按钮 -->
          <el-form-item class="btns">
            <el-button type="success" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 登录表单的数据对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 2, max: 5, message: '长度在 2 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid) => {
        // console.log(valid)
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登陆失败')
        this.$message.success('登陆成功')
        // console.log(res)
        // 将 token 保存到当前网页 sessionStorage
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background: url(../assets/1.jpg) center -252px no-repeat;
  background-size: 100%;
  padding: 0;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
}

.avater_box {
  position: absolute;
  left: 50%;
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  box-shadow: 0 0 10px #ddd;
  transform: translate(-50%, -50%);
  background-color: #fff;
  padding: 10px;
  .img-login {
    width: 100%;
    background: url(../assets/1.jpg);
    background-size: 100%;
    height: 100%;
    box-shadow: inset 0 0 10px darkgray;
    border-radius: 50%;
    background-color: #eee;
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>
